Wristwatch



FIG. 1 is a front view of a wristwatch of the present design;

FIG. 2 is a rear view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a top view, the bottom view being a mirror image thereof;

FIG. 6 is a front right perspective view thereof; and,

FIG. 7 is a rear left perspective view thereof. 

CLAIM The ornamental design for a wristwatch, as shown and described. 